i saw this movie in the early 90's. as far as i remember, it was about a man who lived with his son (possibly younger brother) in a huge house. the man goes on a date with the guardian angel of this house and while they're gone, demons/monsters attack the house and the boy. the one scene i remember well is of the boy growing an eye in the middle of his palm and then stabbing it out with a shard of glass.

i thought the title of the movie was "date with an angel" but i looked that up on imdb and am not so sure that is it, because it appears to be more of a romantic comedy and what i saw was a horror flick.

I believe that you are looking for the movie "The Gate." At least, I seem to remember the kid growing an eyeball out of his hand. I think that I have a copy of this movie in my collection, so I can check this evening.

Do you remember that most of the demons were little things, about 10 inches tall? At the end, a huge one is seen and the boy defeats them by launching a model rocket.

Question: did you post on another site as Popcorn Guy? If not, there might be someone looking for the same movie you are. He mentions a few different details than you did, maybe it might help jog your memory:

"Tonight, we will honor the greatest writers in America with a modest 9 by 12 certificate and a check for three thousand dollars...three thousand dollars? Stephen King makes more than that for writing boo on a cocktail napkin." - Jimmy Breslin